Blegny: population and statistics
Blegny has a population of 13,620 (2026) across 26.1 km², or 522 people per km². It ranks 275 of 565 municipalities by population. Its population is growing: +3.1% between 2016 and 2026.
- 13,620 residents
- 26.1 km²
- 522 people/km²
- 234 m
Key points
Among the 84 municipalities in Liège, Blegny ranks No. 23 by population.
Cars per household: 1.36 in Blegny, compared with an average of 1.11 in Liège and 1.07 nationally.
Largest business sector: Professional, scientific and technical, with 19.3% of the area's businesses.
A 1 kWp solar panel tilted at 39° generates about 1,050 kWh a year here.
Did you know?
Blegny in numbers
All indicators for Blegny
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Blegny | Liège | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants aged 65 and over (2026) | 23.1% | 20.6% | 21.7% | ranked 159 of 564 | |
| Share of inhabitants under 20 (2026) | 20.3% | 22.2% | 21.5% | ranked 426 of 564 |
Housing
| Indicator | Blegny | Liège | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings built before 1946 (2024) | 33.4% | – | 34.6% | ranked 295 of 564 | |
| Buildings built after 2001 (2024) | 12.8% | – | 15.3% | ranked 376 of 564 | |
| Share of houses in the building stock (2024) | 83.5% | – | 79.9% | ranked 95 of 564 | |
| Number of dwellings (2024) | 5,964 | 549,948 | 5,783,434 | ranked 287 of 565 | |
| New dwellings authorised per year per 1,000 inhabitants (2021-2025) | 3.73 ‰ inh. | 2.72 ‰ inh. | 4.39 ‰ inh. | ranked 348 of 564 |
Energy
| Indicator | Blegny | Liège | National | Position | Rank |
|---|---|---|---|---|---|
| Residential buildings with central heating or air conditioning (2024) | 74.3% | – | 76.7% | ranked 328 of 564 |
Economy
| Indicator | Blegny | Liège | National | Position | Rank |
|---|---|---|---|---|---|
| VAT-liable enterprises (2024) | 1,406 | 89,330 | 1,170,010 | ranked 265 of 565 | |
| VAT-liable enterprises per 1,000 inhabitants (2024) | 103.2 ‰ inh. | 79.4 ‰ inh. | 102.2 ‰ inh. | ranked 276 of 564 | |
| Net taxable income per inhabitant (2023) | 24,621 € | 21,639 € | 24,247 € | ranked 257 of 564 | |
| Median disposable income (administrative) (2023) | 30,683 € | – | 30,830 € | ranked 291 of 551 | |
| Median selling price of houses (2025) | 310,000 € | – | 302,500 € | ranked 257 of 554 |
Transport
| Indicator | Blegny | Liège | National | Position | Rank |
|---|---|---|---|---|---|
| Cars per household (2025) | 1.36 | 1.11 | 1.25 | ranked 81 of 564 | |
| Households without a car (2025) | 15.3% | 25.4% | 17.6% | ranked 424 of 564 |
Society
| Indicator | Blegny | Liège | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants of foreign nationality (2026) | 4.2% | 11.6% | 6.4% | ranked 436 of 564 | |
| Administrative poverty risk (2023) | 7.0% | 14.1% | 7.0% | ranked 272 of 551 |
Population of Blegny over time
Blegny had 13,212 residents in 2016 and 13,620 in 2026.
| Year | Population |
|---|---|
| 2021 | 13,382 |
| 2022 | 13,395 |
| 2023 | 13,440 |
| 2024 | 13,482 |
| 2025 | 13,579 |
| 2026 | 13,620 |
Where is Blegny?
Business sectors: Blegny
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Professional, scientific and technical19.3% ×1.0
- Wholesale and retail trade16.5% ×1.1
- Construction15.7% ×1.1
- Other service activities7.3% ×1.1
- Administrative and support services5.6% ×0.9
- Manufacturing5.4% ×1.1
- Health and social work4.8% ×1.0
- Accommodation and food services4.7% ×0.9
Sunshine and temperatures: Blegny
Frequently asked questions
What is the population of Blegny?
Blegny has 13,620 residents (2026), ranking 275 of 565 municipalities.
How big is Blegny?
Blegny covers 26.1 km², with a density of 522 people per km².
Is the population of Blegny growing?
Between 2016 and 2026, the population of Blegny went from 13,212 to 13,620, a change of +3.1%.
Where is Blegny?
Blegny is in Liège. It belongs to Liège (arrondissement). Latitude 50.667, longitude 5.733.
Share of houses in the building stock: what is the figure for Blegny?
In Blegny, “Share of houses in the building stock” stands at 83.5% (2024), ranking 95 of 564 municipalities; the national median is 79.9%.
Cars per household: what is the figure for Blegny?
In Blegny, “Cars per household” stands at 1.36 (2025), ranking 81 of 564 municipalities; the national median is 1.25.
How much electricity does a solar panel produce in Blegny?
In Blegny, a 1 kWp south-facing system tilted at 39° produces about 1,050 kWh a year.
Which municipalities border Blegny?
The nearest to Blegny are Dalhem (5.7 km), Soumagne (5.7 km), Herve (6.0 km), Fléron (6.6 km), Herstal (7.3 km).
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